On Jun 27, 6:56=A0am, Ponch <timpo...@[EMAIL PROTECTED]
> wrote:
> Hi,
>
> I am trying to load an image, create a region of interest which is not
> rectangular, create a mask of this area for me to then do some basic
> processing on it.
> In the selected region i want to subtract the blue band from the red,
> and then plot a contour of a various level from that image.
>
> However i am stuck trying to apply the mask. I have the following so
> far;
>
> I=3Dimread ('plan.jpg');
> mask=3Droi2poly;
>
> rbI=3Ddouble(I(:,:,1))-double(I(:,:,3));
> contour(rbI,[0 0]);
>
> What i am not sure on is how to apply the mask to the image as a
> whole, if i need to use the find command, if so how?
>
> Any suggestions would be very helpful.
>
> Cheers
> Ponch
------------------------------------------
(This is MATLAB). You need to dot-multiply your mask by your image:
maskedImage =3D rbI .* mask;
Regards,
ImageAnalyst
|
